AyeCode / invoicing

    return apply_filters( 'wpinv_is_subscriptions_history_page', $ret );

}

function wpinv_send_to_success_page( $args = null ) {

	$redirect = wpinv_get_success_page_uri();

    if ( !empty( $args ) ) {

        // Check for backward compatibility

        if ( is_string( $args ) )

            $args = str_replace( '?', '', $args );

        $args = wp_parse_args( $args );

        $redirect = add_query_arg( $args, $redirect );

    }

    $gateway = isset( $_REQUEST['wpi-gateway'] ) ? $_REQUEST['wpi-gateway'] : '';

    $redirect = apply_filters( 'wpinv_success_page_redirect', $redirect, $gateway, $args );

    wp_redirect( $redirect );

    exit;

}

function wpinv_send_to_failed_page( $args = null ) {

	$redirect = wpinv_get_failed_transaction_uri();

    exit;

}

function wpinv_send_to_failed_page( $args = null ) {

	$redirect = wpinv_get_failed_transaction_uri();

    if ( !empty( $args ) ) {

        // Check for backward compatibility

        if ( is_string( $args ) )

            $args = str_replace( '?', '', $args );

        $args = wp_parse_args( $args );

        $redirect = add_query_arg( $args, $redirect );

    }

    $gateway = isset( $_REQUEST['wpi-gateway'] ) ? $_REQUEST['wpi-gateway'] : '';

    $redirect = apply_filters( 'wpinv_failed_page_redirect', $redirect, $gateway, $args );

    wp_redirect( $redirect );

    exit;

}

function wpinv_get_checkout_uri( $args = array() ) {

	$uri = wpinv_get_option( 'checkout_page', false );